In sorting through my collection, I have come across a number of elements of which I have a fairly large amount, but have not found a use for beyond the original intended use.

Perhaps the best example of this is the chain, which uses the hinge arms with one finger on one end and 2 fingers on the other. These arms were found in the SpiderMan sets containing Doc Oc, and in the Mini AT-AT Star Wars sets.

Features:

-completely interlocking
-5 arms in each link
-67 total links (335 total pieces)

Potential Uses:

Ball and chain (requires building the ball)
Woman in chains (requires building the woman)
Chain gang (requires building the gang)
Chain and stanchions for displays (unreasonable due to amount of chain needed to adequately cover a display)